Dental Nation
Question and answer

Professional strength teeth whitening gel

Professional whitening gel contains peroxide selected and applied through a dental plan after checking teeth, gums, restorations, and staining.

The short answer

Professional whitening gel contains peroxide selected and applied through a dental plan after checking teeth, gums, restorations, and staining. The dentist controls contact with the gums and explains expected sensitivity and maintenance.

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What is the direct answer?

What does this question mean?

Whitening gels use peroxide molecules that diffuse into enamel and dentine and alter stain molecules. They change the colour of natural tooth structure, but fillings, crowns, veneers, and bonding do not whiten in the same way.

What can you do next?

Have the dentist check for decay, leaking restorations, gum recession, cracks, and the source of discoloration before choosing a gel. Follow the prescribed amount and contact time, keep gel off the gums, and do not combine products without instructions.

When should you seek dental care?

Seek an examination before whitening if teeth are painful, broken, sensitive, or heavily restored, or if gums are inflamed. Stop the product and contact the dental team if marked gum irritation, persistent pain, or unusual colour change develops.

What should you ask the dentist?

Ask which peroxide formulation and delivery method suit your teeth, how restorations will be matched, and what sensitivity plan is available. Ask how long the course lasts, how trays should be cleaned, and when a review is needed.

Frequently asked questions

Can professional gel whiten a crown?

No. A crown keeps its material colour, so the dentist plans the shade of any replacement restoration around the whitened teeth.

Why can whitening make teeth sensitive?

Peroxide can temporarily affect fluid movement through tooth structure, which may stimulate sensitive tooth nerves.